. 2022 Feb 28;61(10):4361–4370. doi: 10.1021/acs.inorgchem.1c03618

Table 2. ³¹P{¹H} and ¹¹B NMR Data of Diphosphinoborane (1b) and Triphosphinoboranes (1c–5c).

compound	δ_P (ppm)	²J_PP (Hz)	δ_B (ppm)
1b	46.2 (bs, tBu₂P)	–	74.6 (bs)
1c	40.8 (bs, tBu₂P)	–	56.3 (bs)
2c	122.4 (bs, Cy₂P); −1.5 (bs, tBu₂P)	–	50.4 (bs)
3c	130.3 (bs, iPr₂P); −2.9 (bs, tBu₂P)	–	50.6 (bs)
4c	85.5 (bs, tBuPhPB); 12.4 (bd, tBu₂P)	106	59.6 (bs)
5c	52.3 (bd, tBu₂P); −12.4 (bt, Ph₂P)	98	63.8 (bs)

Table 2. 31P{1H} and 11B NMR Data of Diphosphinoborane (1b) and Triphosphinoboranes (1c–5c).